The sun. [volume] (New York [N.Y.]) 1833-1916, 1887-10-02

sealed cards there IL no limit to the number Of
words except the superfcies Of the paper. The
open card measures 5x3 inches, and the scaled
card. when unfolded. 6x6 inches. When folded
the sealed card measures like tho other. 6x8
inches. In the year 1885 3.16s.069 Of these
pneumatic messages were sent and delivered
In Paris. and the total revenue produced by
this branch Of the Post Of1ce Department
amounted to 1,237.998 francs 80 confines, or
upward Of $247.0O
The inventor and perfector Of the system
was the late N. Charles Bontemps, who has
left q most interesting work ON Les Svst6mes
Ul6oraphiQaes us78) which. however. needs to
be completed up to date. for although N. Bon
temps planned all tho machinery now in use,
he did not live to see 1t in working, nor did he
have time to describe the latest improvements.
The first pneumatic tube was laid In Paris In
1855, between the telegraph Office Of the Grand
Hotel and that Of the Bourse. In 1868 the
office Of the Place du Theatre Francois was
connected with the Bourse by q pneumatic
tube laid In tho sewers. In 1869 the offices Of
the Champs Elysee and Of the Rue Boissy
d'Anglais were connected. In 1870 the st.
Denis and Chateau d'Eau quarter was con-
nscted with the Bourse. The telegraphic sys-
tenn which commands Paris has its centre at
103 Rue Grenelle St. German, which Is tho
great receiving and distributing Office. The
district offices were at first connected BY wires
with the central! Office. but the day came when
these wires were 80 encountered that 1t was
found advantageous to organize o horse
service between the Bourse and the central
ONCE. and light carts ran every quarter Of an
hour between the two points, taking to tho
Rue Grenelle the latest quotations, and bring
ing TO the Bourse orders from the provinces
Aahr Whnr - - In
underground communication Yas devised bo-
tween these two stations. and the first tube was
;s s% II Psls :? s ss ssssy W m' %s:
q tubes; and at the present moment the total
length Of the pne9matto network OF tubes IN
miles, and there are now In construction some
ssss sIs Ts y FL # sss
hs pnean a teieSrspR lines are establish
seRss q s.tssH Sss
amsors VIII Ss and 9o Ta ne He
the Whole nstwosk Is about ons-seventS. -
rs an aS z! BE-
ths galleries OF tho sewers are used and the
s is case 81
dents, because II leaves the tubes always ae-
passage Of tho message boxes in the pneumatic
tubes. and consequently when necessary the
the requisite curve: and then resnter, the
Of the streets, and when 2 Line Is to be let into
assy q. the tubes Are sloIed very gradually
points Of the line there Is frequently an 40
emulation Of water produced by, the. motive
ar which is charged with, steam when 1t Issues
from the reservoir, and wherever the tempera-
ture Of the pipes Is lower than that Of the afr
reservoirs this steam eondenses, rusts the
pipes, and genorates yellow mud which would
dirty them. In order to obviate this incon-
tSa aSss pHrsing siphons are placed along
II these tubes run trains Of message boxes.
which circulate by means OF compressed or
farened airRroduced in the manner described
hereafter. The message boxes. called "cour-
seurs, OF rpnpers are composed Of two parts
isaither envelope fitting tightly over T. A box
VIII contain twenty messages. and with full
charge will weigh altogether, some twelve
Sunsss; train is formed by placing several
OF, but the last box OF the train carries ct the